Cclassify each characteristic of sound waves. intensity: loudness: frequency: pitch:

Explanation :

The characteristics of sound waves are as follows :

(1) Intensity : The power per unit area carried by a sound wave is called as the intensity of wave. So, . Its unit is .

(2) Loudness : Loudness means how the listener perceives the sound intensity. It is determined by the intensity of sound waves.

(3) Frequency : The number of to and  fro oscillations of sound wave per unit time is called as its frequency. Its unit is Hz or Hertz.

(4) Pitch : Pitch means the quality of sound. It is closely related to frequency. For high pitch, the number of waves are more.

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

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answer: i think he can see forward ten seconds and move forward ten seconds but giorno can undo his actions with ger.

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